______ disappointed us most was that the guide was always asking us to leave ____ we thought very interesting.
Many of the students turned a deaf ear to his advice, they knew it to be valuable.
A great fire in our town last night and many people became homeless. A.broke through B.broke off C.broke out D.broke down
Under no circumstances and at no time __________be the first______ nuclear weapons.
He hurried home, only to find his house __________.
The government have realized the use the returnees make ______ the experience and skills ________while living abroad.